All travelers need information they can trust. Detailed, accurate data about pedestrian spaces, travel environments, and travel services are crucial for any usable trip planner, trip concierge, wayfinding application, or exploratory mobile application. Many populations, including people with disabilities, older adults, veterans, and suburban and rural populations are underserved by current trip planners because these applications are missing key pieces of information about sidewalks, travel environments, and community transit. Urban and transportation planners also need data about all travel modes and environments to accurately measure every traveler’s access to transportation and mobility, and appropriately measure the performance of our transportation network. No data for travelers leads to reduced access to community services and opportunities. No data for planners impacts the planning cycle by lowering precision in prioritization schemes, measurement of the current state of the transit network, and measurement of project impacts, both short and longterm.